CVEvulnerability

CVE-2017-16997

7.8 HIGH Published 2017-12-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-12-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.8 HIGH — CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-426

Description

elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the "./" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.

Affected configurations

• gnu glibc 2.19 • gnu glibc 2.20 • gnu glibc 2.21 • gnu glibc 2.22 • gnu glibc 2.23 • gnu glibc 2.25 • gnu glibc 2.26 • redhat enterprise linux desktop 7.0 • redhat enterprise linux server 7.0 • redhat enterprise linux workstation 7.0

Related

Weakness · CWE (1)

  • CWE-426 Untrusted Search Path weakness

References